1 #!/usr/bin/env python3 !! 1 #!/usr/bin/python
2 # 2 #
3 # Copyright 2004 Matt Mackall <mpm@selenic.com> 3 # Copyright 2004 Matt Mackall <mpm@selenic.com>
4 # 4 #
5 # inspired by perl Bloat-O-Meter (c) 1997 by A 5 # inspired by perl Bloat-O-Meter (c) 1997 by Andi Kleen
6 # 6 #
7 # This software may be used and distributed ac 7 # This software may be used and distributed according to the terms
8 # of the GNU General Public License, incorpora 8 # of the GNU General Public License, incorporated herein by reference.
9 9
10 import sys, os, re, argparse !! 10 import sys, os, re
11 from signal import signal, SIGPIPE, SIG_DFL <<
12 11
13 signal(SIGPIPE, SIG_DFL) !! 12 if len(sys.argv) != 3:
>> 13 sys.stderr.write("usage: %s file1 file2\n" % sys.argv[0])
>> 14 sys.exit(-1)
14 15
15 parser = argparse.ArgumentParser(description=" !! 16 def getsizes(file):
16 group = parser.add_mutually_exclusive_group() <<
17 group.add_argument('-c', help='categorize outp <<
18 group.add_argument('-d', help='Show delta of D <<
19 group.add_argument('-t', help='Show delta of t <<
20 parser.add_argument('-p', dest='prefix', help= <<
21 parser.add_argument('file1', help='First file <<
22 parser.add_argument('file2', help='Second file <<
23 <<
24 args = parser.parse_args() <<
25 <<
26 re_NUMBER = re.compile(r'\.[0-9]+') <<
27 <<
28 def getsizes(file, format): <<
29 sym = {} 17 sym = {}
30 nm = "nm" !! 18 for l in os.popen("nm --size-sort " + file).readlines():
31 if args.prefix: !! 19 size, type, name = l[:-1].split()
32 nm = "{}nm".format(args.prefix) !! 20 if type in "tTdDbB":
33 !! 21 # function names begin with '.' on 64-bit powerpc
34 with os.popen("{} --size-sort {}".format(n !! 22 if "." in name[1:]: name = "static." + name.split(".")[0]
35 for line in f: !! 23 sym[name] = sym.get(name, 0) + int(size, 16)
36 if line.startswith("\n") or ":" in <<
37 continue <<
38 size, type, name = line.split() <<
39 if type in format: <<
40 # strip generated symbols <<
41 if name.startswith("__mod_"): <<
42 if name.startswith("__se_sys") <<
43 if name.startswith("__se_compa <<
44 if name.startswith("__addressa <<
45 if name == "linux_banner": con <<
46 if name == "vermagic": continu <<
47 # statics and some other optim <<
48 name = re_NUMBER.sub('', name) <<
49 sym[name] = sym.get(name, 0) + <<
50 return sym 24 return sym
51 25
52 def calc(oldfile, newfile, format): !! 26 old = getsizes(sys.argv[1])
53 old = getsizes(oldfile, format) !! 27 new = getsizes(sys.argv[2])
54 new = getsizes(newfile, format) !! 28 grow, shrink, add, remove, up, down = 0, 0, 0, 0, 0, 0
55 grow, shrink, add, remove, up, down = 0, 0 !! 29 delta, common = [], {}
56 delta, common = [], {} !! 30
57 otot, ntot = 0, 0 !! 31 for a in old:
58 !! 32 if a in new:
59 for a in old: !! 33 common[a] = 1
60 if a in new: !! 34
61 common[a] = 1 !! 35 for name in old:
62 !! 36 if name not in common:
63 for name in old: !! 37 remove += 1
64 otot += old[name] !! 38 down += old[name]
65 if name not in common: !! 39 delta.append((-old[name], name))
66 remove += 1 !! 40
67 down += old[name] !! 41 for name in new:
68 delta.append((-old[name], name)) !! 42 if name not in common:
69 !! 43 add += 1
70 for name in new: !! 44 up += new[name]
71 ntot += new[name] !! 45 delta.append((new[name], name))
72 if name not in common: <<
73 add += 1 <<
74 up += new[name] <<
75 delta.append((new[name], name)) <<
76 46
77 for name in common: !! 47 for name in common:
78 d = new.get(name, 0) - old.get(name, 0 48 d = new.get(name, 0) - old.get(name, 0)
79 if d>0: grow, up = grow+1, up+d 49 if d>0: grow, up = grow+1, up+d
80 if d<0: shrink, down = shrink+1, down- 50 if d<0: shrink, down = shrink+1, down-d
81 delta.append((d, name)) 51 delta.append((d, name))
82 52
83 delta.sort(reverse=True) !! 53 delta.sort()
84 return grow, shrink, add, remove, up, down !! 54 delta.reverse()
85 55
86 def print_result(symboltype, symbolformat): !! 56 print "add/remove: %s/%s grow/shrink: %s/%s up/down: %s/%s (%s)" % \
87 grow, shrink, add, remove, up, down, delta !! 57 (add, remove, grow, shrink, up, -down, up-down)
88 calc(args.file1, args.file2, symbolformat) !! 58 print "%-40s %7s %7s %+7s" % ("function", "old", "new", "delta")
89 !! 59 for d, n in delta:
90 print("add/remove: %s/%s grow/shrink: %s/% !! 60 if d: print "%-40s %7s %7s %+7d" % (n, old.get(n,"-"), new.get(n,"-"), d)
91 (add, remove, grow, shrink, up, -dow <<
92 print("%-40s %7s %7s %+7s" % (symboltype, <<
93 for d, n in delta: <<
94 if d: print("%-40s %7s %7s %+7d" % (n, <<
95 <<
96 if otot: <<
97 percent = (ntot - otot) * 100.0 / otot <<
98 else: <<
99 percent = 0 <<
100 print("Total: Before=%d, After=%d, chg %+. <<
101 <<
102 if args.c: <<
103 print_result("Function", "tTwW") <<
104 print_result("Data", "dDbBvV") <<
105 print_result("RO Data", "rR") <<
106 elif args.d: <<
107 print_result("Data", "dDbBrRvV") <<
108 elif args.t: <<
109 print_result("Function", "tTwW") <<
110 else: <<
111 print_result("Function", "tTdDbBrRvVwW") <<
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